I think I found a small bug in 1.02 : when you are in midi mode and enter the sound setup menu (func+trig) and try to change the pitch bend depth or the octave setting by ±1, it will leave the menu immediately so that you to have to renavigate and do the same thing again. this is not the case on the digitone synth tracks and a little bit annoying

when sending program changes via octatracks parts its still one pattern late.

did you try to change the ch.lenght (change length) in the page menu of the DN (or DT, or…)?
first you have to change to length per track.
put in 16 (or 8) or whatever the minimum length of your pattern should be.
i didnt try it with the octatrack - but usually it works - and then its a feature.